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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * published by the Free Software Foundation.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
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 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
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package com.oracle.svm.hosted.ameta;

import com.oracle.graal.pointsto.meta.AnalysisMetaAccess;
import com.oracle.svm.core.feature.AutomaticallyRegisteredFeature;
import com.oracle.svm.core.feature.InternalFeature;
import com.oracle.svm.core.hub.DynamicHub;
import com.oracle.svm.core.traits.BuiltinTraits.BuildtimeAccessOnly;
import com.oracle.svm.core.traits.BuiltinTraits.NoLayeredCallbacks;
import com.oracle.svm.core.traits.SingletonLayeredInstallationKind.Independent;
import com.oracle.svm.core.traits.SingletonTraits;
import com.oracle.svm.hosted.FeatureImpl.DuringSetupAccessImpl;
import com.oracle.svm.hosted.SVMHost;

@SingletonTraits(access = BuildtimeAccessOnly.class, layeredCallbacks = NoLayeredCallbacks.class, layeredInstallationKind = Independent.class)
@AutomaticallyRegisteredFeature
public class HostedDynamicHubFeature implements InternalFeature {
    private AnalysisMetaAccess metaAccess;
    private SVMHost hostVM;

    @Override
    public void duringSetup(DuringSetupAccess a) {
        DuringSetupAccessImpl access = (DuringSetupAccessImpl) a;
        metaAccess = access.getMetaAccess();
        hostVM = access.getHostVM();

        access.registerObjectReplacer(this::replace);
    }

    private Object replace(Object source) {
        if (source instanceof Class) {
            Class<?> clazz = (Class<?>) source;
            DynamicHub dynamicHub = hostVM.dynamicHub(metaAccess.lookupJavaType(clazz));
            return dynamicHub;
        }
        return source;
    }
}
